Which kind of shirt is this one?

It is a couple of weeks I have a doubt I cannot resolve. I asked several 'experts' but no one gave me a proper answer. I would like to know what kind of shirt is this one:

As you may see the shirt looks thicker and softer than a classic shirt. I understand the question might seem a little bit confused; what I need is any kind of adjective which can describe this shirt so that I can search for something like that on the web. If you know any shop/brand who sells similar shirts, that may be a valuable information as well (I have a Burberry shirt that is quite similar). Thank you very much in advance.

Post Scriptum
For your information the actor in the picture is Simon Baker (which plays Patrick Jane in the TV seris "The Mentalist").

As I mentioned I am not interested in the pattern. The shirt can be striped, monochromatic or anything else for what I am concerned. I am interested in the way the cotton is treated. Those shirts look thicker and softer. Don't you feel the fabric is 'warmer' compared to a 'normal' shirt like this one: